Stiffening structure in a prosthetic member

Patent metadata

Field	Value
Publication number	US-9610164-B2
Application number	US-201414171227-A
Country	US
Kind code	B2
Filing date	Feb 3, 2014
Priority date	Feb 3, 2014
Publication date	Apr 4, 2017
Grant date	Apr 4, 2017

Abstract

A prosthetic member is formed to include a selected thickness to allow for bone retention. The prosthetic member can include a formed support member that can include a rigidifying structure. The rigidifying structure can be formed substantially simultaneously with a formation of at least one portion of the prosthetic member.

First claim

What is claimed is:

1. A prosthesis system, comprising:
a solid section having an internal surface and a solid external surface;
a support member formed with and extending from the solid external surface, the support member including at least one sidewall extending from the solid external surface, the support member comprising a plurality of strips forming a lattice;
a porous section formed with the solid section and on the solid external surface and the support member;
wherein a porous external surface of the porous section is substantially equal in distance from the internal surface at a first point over the support member and at a second point over the external surface.

2. The prosthesis system of claim 1 , further comprising:
a liner configured to be placed with the solid section.

3. The prosthesis system of claim 1 , wherein the solid section and the porous section are formed substantially simultaneously by additive manufacturing.

4. The prosthesis system of claim 1 , wherein the solid section and the porous section are formed of a metal material.

5. The prosthesis system of claim 1 , wherein the support member includes an annular rib extending around the solid section near a rim.

6. The prosthesis system of claim 1 ,
wherein the solid section includes a rim and the solid external surface extends from the rim to an apex;
wherein the rim extends from the internal surface to a rim external surface,
wherein the rim external surface extends from the solid external surface.

7. The prosthesis system of claim 6 , wherein the porous section includes an external surface that is substantially congruent with the rim external surface.

8. A prosthesis system, comprising:
a solid section having an internal surface and a solid external surface;
a support member formed with and extending from the solid external surface, wherein the support member includes at least one sidewall extending from the solid external surface;
a porous section formed with the solid section and on the solid external surface and the support member;
wherein a porous external surface of the porous section is substantially equal in distance from the internal surface at a first point over the support member and at a second point over the external surface; and
wherein the support member includes an arch that extends from a first point at a rim of the solid section to a second point at the rim and towards an apex of the solid section.

9. The prosthesis system of claim 8 , wherein the arch includes a plurality of arches, wherein at least a first arch of the plurality of arches and a second arch of the plurality of arches include different heights measured from the rim.

10. The prosthesis system of claim 8 , wherein the support member includes an annular rib extending around the solid section near the rim.

11. A prosthesis system, comprising:
a solid section having a rim portion and a curved portion extending from the rim portion to an apex, wherein the curved portion includes an internal curved surface and an external curved surface, wherein the rim portion has an internal rim surface congruent with the internal curved portion and an external rim surface extending away from the external curved surface;
a support member formed with and extending from the external curved surface, the support member including at least one sidewall extending from the external curved surface and at least one sidewall extending to a support member top surface, the support member comprising a plurality of forming a lattice; and
a porous section formed with the solid section and on the external surface and the support member;
wherein a porous external surface of the porous section is substantially congruent with the external rim surface and defines an external dimension of a prosthesis.

12. The prosthesis system of claim 11 , wherein the support member top surface is inset from the external rim surface, wherein the porous section overlays the support member.

13. The prosthesis system of claim 12 , wherein the support member is formed as at least one elongated portion on the external surface.

14. A prosthesis system, comprising:
a solid section having a rim portion and a curved portion extending from the rim portion to an apex, wherein the curved portion includes an internal curved surface and an external curved surface, wherein the rim portion has an internal rim surface congruent with the internal curved portion and an external rim surface extending away from the external curved surface;
a support member formed with and extending from the external curved surface, wherein the support member includes at least one sidewall extending from the external curved surface and at least one sidewall extends to a support member top surface; and
a porous section formed with the solid section and on the external surface and the support member;
wherein a porous external surface of the porous section is substantially congruent with the external rim surface and defines an external dimension of a prosthesis;
wherein the support member top surface is inset from the external rim surface;
wherein the porous section overlays the support member;
wherein the support member is formed as at least one elongated portion on the external surface; and
wherein the support member includes an arch that extends over the curved external surface from a first point at the rim portion to a second point at the rim portion and towards the apex.

15. The prosthesis system of claim 14 , wherein the support member includes an annular rib extending around the solid section near the rim portion.

Assignees

• Biomet Mfg Llc

Inventors

• Smith Aaron P

Classifications

• A61F2002/30011

  differing in porosity · CPC title

• A61F2002/3097

  using laser · CPC title

• A61F2002/3412

  with pins or protrusions, e.g. non-sharp pins or protrusions projecting from a shell surface · CPC title

• A61F2/34 Primary

  Acetabular cups · CPC title

• A61F2002/30962

  using stereolithography · CPC title